Only three inmates in the U.S. have been executed by firing squad since 1976, with the last execution in 2010.

Death row inmate Brad Sigmon has chosen to die by firing squad after being convicted for the deaths of his ex-girlfriend's parents.

An inmate on South Carolina's death row has chosen to die on March 7 by firing squad, his lawyer said Friday. Brad Sigmon, 67, who was convicted in 2002 of killing his ex-girlfriend’s parents, would be the first condemned prisoner to be executed by that method in South Carolina and the first inmate to die by firing squad in the U.